Composite transparent conductive film based on plant veins and preparation method thereof

A technology of transparent conductive film and conductive film, which is applied to equipment for manufacturing conductive/semiconductive layers, conductive layers on insulating carriers, and cable/conductor manufacturing. Problems such as high contact resistance

Active Publication Date: 2021-08-03
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method builds a conductive network, the contact resistance is high and the bonding force with the substrate is weak, and the conductive material is easy to fall off during the bending process.

Method used

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  • Composite transparent conductive film based on plant veins and preparation method thereof
  • Composite transparent conductive film based on plant veins and preparation method thereof
  • Composite transparent conductive film based on plant veins and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The composite transparent conductive film based on plant veins is a transparent conductive film formed by compounding plant veins 1 and silver nanowires 2-MXene3 by a deposition method.

[0036] The silver nanowires have a diameter of 100 nm and a length of 40 μm.

[0037] The size of the MXene is 1 μm.

[0038] The above-mentioned preparation method of the composite transparent conductive film based on plant veins comprises the following steps:

[0039] Step 1, using sodium hydroxide aqueous solution to etch the plant leaves, removing the mesophyll cells, washing with deionized water, and drying to obtain the plant vein base;

[0040] Step 2, flattening the plant vein base obtained in step 1 with a glass sheet to obtain a flat plant vein base;

[0041] Step 3, soaking the plant vein base obtained in step 2 in the silver nanowire ethanol solution and then drying to obtain the silver nanowire conductive layer, soaking the veins obtained in the silver nanowire conductive ...

Embodiment 2

[0051] The same part of this embodiment and embodiment 1 will not be repeated, and the difference is that the plant leaves in the step 1 are osmanthus leaves.

[0052] The square resistance of the transparent conductive film is 7.1 Ω / sq, the transmittance at 550 nm is 78%, and the resistance remains unchanged after being bent 100 times.

Embodiment 3

[0054] The same parts of this embodiment and embodiment 1 will not be repeated, the difference is that the diameter of the silver nanowire is 120 nm, and the length is 50 μm.

[0055] The size of the MXene is 3 μm.

[0056] In step 3, the drying temperature of the plant vein substrate after soaking in the silver nanowire ethanol solution is 60 ° C, and the drying time is 35 minutes, and the drying temperature of the vein of the silver nanowire conductive layer after soaking in the MXene solution is The temperature is 60°C, and the drying time is 35 minutes.

[0057] In step 1, the concentration of the aqueous sodium hydroxide solution is 0.15 g / ml.

[0058] In step 1, the temperature of the aqueous sodium hydroxide solution is 95° C., and the etching time is 2.5 hours.

[0059] In step 1, the drying temperature is 60° C., and the drying time is 35 minutes.

[0060] In step 3, the concentration of the silver nanowire ethanol solution is 3 mg / ml, and the concentration of the ...

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Abstract

The invention relates to the field of transparent conductive films, in particular to a composite transparent conductive film based on plant veins and a preparation method thereof. The composite transparent conductive film is formed by compounding the plant veins and silver nanowires-MXene through a deposition method. The method comprises the following steps: (1) etching plant leaves with a sodium hydroxide aqueous solution, removing mesophyll cells, washing with deionized water, and drying to obtain a plant vein substrate; (2) flattening the plant vein base to obtain a flat plant vein base; (3) soaking in a silver nanowire ethanol solution, drying to obtain a silver nanowire conductive layer, soaking the veins of the obtained silver nanowire conductive layer in an MXene solution, and drying; and (4) flattening the silver nanowire-MXene conductive network veins transparent conductive film obtained in the step (3). The conductive film has the characteristics of high conductivity, high light transmittance, high adhesion, high durability, high flexibility, high mechanical stability and the like, and has a wide application prospect in electronic device.

Description

technical field [0001] The invention relates to the field of transparent conductive films, in particular to a composite transparent conductive film based on plant veins and a preparation method thereof. Background technique [0002] Transparent conductive films are widely used in touch screens, organic light-emitting diodes, liquid crystal displays, solar cells, sensors, printable electronics and many other electronic devices. The flexibility and stability of transparent conductive films play an increasingly important role in the development of electronic devices. Most thin-film optoelectronic devices use sputtered metal oxide thin films as their transparent electrode materials. For now, the most widely used is the transparent conductive film based on indium tin oxide (ITO), which has been widely used in the past half century due to its good conductivity and transparency. business use. However, the disadvantages of indium oxide, such as brittleness, high-temperature depos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B13/00
CPCH01B5/14H01B13/0026Y02E10/549
Inventor 苗锦雷曲丽君范强刘旭华
Owner QINGDAO UNIV
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